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430A-EB

The Yokogawa EJA430A-EB is a standard, bracket-mounted differential pressure transmitter from the legacy EJA-A Series. It is a reliable and widely used workhorse for measuring differential pressure, liquid level, and flow (with a primary element) in various industrial processes.

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Parameters & Specifications
Category Specification
Model Code EJA430A-EB
Type Differential Pressure (DP) Transmitter
Measuring Range Range Code B (URL = 500 kPa): Adjustable from 5 - 17.5 kPa to 50 - 500 kPa (20 - 70 inH₂O to 200 - 2000 inH₂O).
Note: The "B" in the suffix specifically indicates a 500 kPa (2000 inH₂O) Upper Range Limit (URL).
Process Connection 1/4 NPT female on both the high and low-pressure sides.
Mounting 2-inch pipe mounting (requires a separate mounting bracket).
Wetted Parts SUS316L Stainless Steel (Diaphragm, O-rings)
Accuracy ±0.2% of URL (Standard for EJA-A series)
Output Signal 4 to 20 mA DC, two-wire system.
Power Supply 10.5 to 42 V DC (Standard)
12 to 30 V DC (Typical operating range)
Sensor Technology Single-Crystal Silicon Resonant Sensor
Turn-Down Ratio 15:1
Response Time 0.15 s (150 ms), adjustable to 2.4 s or 6.4 s.
Stability ±0.1% of URL per 10 years (typical)
Process Temperature -40 to 120 °C (-40 to 248 °F)
Ambient Temperature -40 to 85 °C (-40 to 185 °F)
Pressure Limit Working Pressure (Static Pressure): 16 MPa (2320 psi) for the low-pressure side flange.
Protection Rating IP67 (NEMA 4X)
Electrical Connection 1/2-14 NPT Conduit connection
Display Optional (Not included by default. A local indicator was an add-on option).
Communication Analog only (4-20mA). This model typically does not have HART or any other digital communication protocol. The "EB" suffix denotes a basic analog output.
Weight Approximately 4.5 kg (9.9 lbs)